Plow-colter.



41E. BROWN.

PLOW UOLTEB.

APPLICATION FILED 3111.28, 1909.

944,478, Patented Dec.28,1909.

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FFTQ.

EDWIN BROWN, OF ATTICA, INDIANA.

PLOW-COLTER.

Application filed January 28, 1909.

T 0 all whom it may concern:

Be it known that I, EDWIN BROWN, a citizen of the United States,residing at Attica, in the county of Fountain and State of Indiana, haveinvented certain new and useful Improvements in Plow-Colters, of whichthe following is a specification.

This invention relates to that class of plow attachments which are knownas colters orjointers, and it has particular reference to that class ofc-olters which consists of a disk supported for rotation a suitabledistance in advance of the plow.

The present invention has for its object to provide a rolling colter ofsimple and improved construction, which shall be applicable to, andcapable of being used in connection with plows of any well-known andapproved construction, whether they be of the conventional share andmold-board type or of the rotary-disk pattern; the invention being alsoequally applicable to plows adapted to right-hand or to left-hand work.

Further objects of the invention are to provide a rolling colter whichmay be easily and quickly adjusted according to the nature of the workthat is to be performed.

Further objects of the invention are to simplify and improve theconstruction and operation of this class of devices.

With these and other ends in view which will readily appear as thenature of the invention is better understood, the same consists in theimproved construction and novel arrangement and combination of parts,which will be hereinafter fully described and particularly pointed outin the claim.

In the accompanying drawings has been illustrated a simple and preferredform of the invention; it being, however, understood that no limitationis necessarily made to the precise structural details therein exhibited,but that changes, alterations and modifications within the scope of theinvention may be resorted to when desired.

In the drawing-Figure 1 is a side elevation of a rolling colterconstructed in accordance with the principles of the invention, showingalso a portion of a plow-beam to which the same is attached. Fig. 2 is atop plan view of the beam and fastening device. Fig. 3 is a sectionalview taken through the beam on the plane indicated bv the line 3-3, inFig. 1, and showing the invention in front elevation. Fig. 1 is ahorizontal sectional view taken on the plane Specification of LettersPatent.

Patented Dec. .28, 1909.

Serial No. 474,720.

indicated by the line 4-l, in Fig. 1. Fig. 5 is a side elevationillustrating a slightly modified form of the invention. Fig. (5 is ahorizontal sectional view taken on the plane indicated by the line 66,in Fig. 5.

Corresponding parts in the several figures are denoted by likecharacters of reference.

Secured upon the plow-beam 5, by means of a U-shaped clip 6, whichstraddles the beam obliquely, as shown, is a box or casing C, which iscomposed of two half boxes or members 7, and S, the meeting faces ofwhich are provided with vertical grooves or recesses 9, combining toform a bearing for the upper end of a shank B, which is titted and heldsecurely in the box or casing by tightening the nuts 11, upon the clipor yoke 6, the arms of which extend through the flanges formed upon themembers 7 and 8 of the box or casing. The shank B is formed with ashoulder 12, constituting a crank whereby the lower end of said shank isoil'- set laterally with respect to the upper end of said shank; itbeing obvious that by partly rotating the shank in the box or bearing 0,the position of the lower end of said shank may be changed or shifted tothe right or left, front or rear as may be required.

The colter consists of a disk D, which is dished or concave in one sideas shown, said disk being supported for rotation in a holder or carrierconsisting of a fork F, which is bent or curved laterally as shown, soas to conform to the shape or curvature of the disk. Said fork may alsobe curved downwardly as shown in Fig. 1, or the tines'of the fork may beextended in an approximately horizontal plane, as indicated in Fig. 5 ofthe drawings. The fork F is provided at the convergence of its sidemembers or tines 14 with laterally extending flanges 15, between whichis formed a vertical groove or recess 16, which cooperates with asimilar groove or recess 17, in a detachable cap 18 to constitute abearing for the lower end of the crank or shank B; the cap 18 beingprovided laterally with extending flanges 19, which are perforated forthe passage of fastening members, such as bolts 20, which also extendthrough the flanges 15, upon the fork F, thus enabling said fork to beclamped and held very securely in any position to which it may beadjusted upon the lower end of the shank B. The upper and lowerextremities of said shank have been shown those skilled in the art towhich it appertains.

It will be readily seen that the shank or 7 crank may be rotated oradjusted in the bearing whereby it is mounted upon the plow-beam, so asto place the lower end of the shank adjacent to the right or left-handside of the beam as may be desired, and any desired distance in advanceof the plow within the limits of the throw of the crank or offset of theshank. In like manner the fork which carries the disk constituting thecolter is capable of adjustment upon the lower end of the shank so as toplace the colter at any desired angle. It is very obvious that aright-hand or left-hand disk may be used at will; if a fork is used thetines of which extend in a horizontal plane as illustrated in Fig. 5, itis capable of being reversed and thus changed or converted from aright-hand to a left-hand implement or vice versa.

The general construction of the improved implement is extremely simpleand. inexpensive and it is capable of being easily adj usted andmanipulated according to the circumstances and conditions of the workthat is to be performed.

Having thus described the invention, what is claimed is A device of thecharacter designated, comprising a cranked shank, beam attaching meansfor said shank, a fork, means for connecting the latter detachably andreversibly to said shank, a dished colter, having a bolt passing throughits center journalcol in the prongs of the fork, saidprongs being curvedlaterally and following closely the contour of the dished colter.

In testimony whereof I aflix my signature in presence of two witnesses.

EDWIN BROWN.

Witnesses DANL. YOUNG, GEORGE M. FOSTER.

